friends | blogger link exchange

async def on_friendship(self, friendship: Friendship) -> None:
        """when receive a new friendship application, or accept a new friendship

        Args:
            friendship (Friendship): contains the status and friendship info,
            

public static boolean countFriendsPairing(int n, int a[]) {
        int dp[] = new int[n + 1];
        // array of n+1 size is created
        dp[0] = 1;
        // since 1st index position value is fixed so it's marked as 1
        for (int i = 1; i  

private Observable> getAllMyFriendsObservable() {
        return Rx2AndroidNetworking.get("https://fierce-cove-29863.herokuapp.com/getAllFriends/{userId}")
                .addPathParameter("userId", "1")
                .build()
                .